What is used for
#pragma import(__use_no_semihosting_swi)#include "stm32f4xx.h"#include <stdio.h>
struct __FILE { int handle; /* Add whatever you need here */ };FILE __stdout;FILE __stdin;
int fputc(int ch, FILE *f) { return (ITM_SendChar(ch));}
espeacealy this
int fputc(int ch, FILE *f) {return (ITM_SendChar(ch));}